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by mapt 1388 days ago
You have a paved riverbed system to get rid of moderate rains which periodically occur.

That will be insufficient for a 100-year flood (~1000 acres underwater by current mapping), and a 200-year or 500-year flood would put significant fractions of the city underwater.

https://eng2.lacity.org/projects/LARIVER_Glendale_Narrows/do...